{ "currentVersion": 10.91, "id": 15, "name": "Index50k", "type": "Feature Layer", "description": "The National Topographic Series was a federal government inititive to create maps for the whole country, at a variety of scales. This particular layer contains the index of the 1:50 000 maps. Each of these maps covers two degrees of longitude and a single degree of latitude. The naming convention works as follows. At the 1:1 000 000 level, each sheet has a number. - Each of these numbered 1:1M sheets is further divided into 16 lettered 1:250k sheets. - these are labeled A-P, commencing with the letter A in the bottom right, and proceeding in a zig-zag as you move northward. Thus the final layout is: M N O P L K J I E F G H D C B A - Each of these lettered sheets is further subdivided into 16 numbered 1:50k sheets. Each of these maps covers half a degree of longitude and a quarter degree of latitude. - this numbering system follows the pattern as above, with the origin in the bottom right, zig-zagging as you move northward.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "", "parentLayer": { "id": 10, "name": "Map Grids - 0-1:25M scale" }, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "simple", "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 0, 0, 0, 0 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 110, 110, 110, 255 ], "width": 0.4 } }, "label": "", "description": "" }, "transparency": 0, "labelingInfo": null }, "defaultVisibility": false, "extent": { "xmin": -2338788.703899998, "ymin": 283150.4517999999, "xmax": 3119550.1415000036, "ymax": 4980557.573200002, "spatialReference": { "wkid": 102002, "latestWkid": 102002 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeNone", "displayField": "SNRC", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "SNRC", "type": "esriFieldTypeString", "alias": "Snrc", "length": 6, "domain": null }, { "name": "CATEGORIE", "type": "esriFieldTypeString", "alias": "Categorie", "length": 30, "domain": null }, { "name": "CDED250K", "type": "esriFieldTypeString", "alias": "Cded250k", "length": 16, "domain": null }, { "name": "NTDB250K", "type": "esriFieldTypeString", "alias": "Ntdb250k", "length": 16, "domain": null }, { "name": "LIMITS250K", "type": "esriFieldTypeString", "alias": "Limits250k", "length": 16, "domain": null }, { "name": "SHAPE", "type": "esriFieldTypeGeometry", "alias": "SHAPE", "domain": null }, { "name": "SHAPE.STArea()", "type": "esriFieldTypeDouble", "alias": "SHAPE.STArea()", "domain": null }, { "name": "SHAPE.STLength()", "type": "esriFieldTypeDouble", "alias": "SHAPE.STLength()", "domain": null } ], "geometryField": { "name": "SHAPE", "type": "esriFieldTypeGeometry", "alias": "SHAPE" }, "indexes": [ { "name": "R330_pk", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S325_idx", "fields": "SHAPE", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Data,Map,Query", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "effectiveMinScale": 25000000, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "SHAPE.STArea()", "shapeLengthFieldName": "SHAPE.STLength()", "units": "esriMeters" }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }